Re: Layout Doesn't Work

From:

Jeff Higgins <jeff@invalid.invalid>

Newsgroups:

comp.lang.java.programmer

Date:

Fri, 10 Aug 2012 10:09:43 -0400

Message-ID:

<k034gl$b95$1@dont-email.me>

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.Timer;
import javax.swing.WindowConstants;

@SuppressWarnings("serial")
public final class Hide_Show_Label_with_Delay
extends JFrame {

   private final JButton button;
   private final JLabel label;
   private final Timer timer;

   private Hide_Show_Label_with_Delay() {

     button = new JButton("Show");
     label = new JLabel("Label");
     timer = new Timer(3000, new ActionListener() {
       @Override
       public void actionPerformed(ActionEvent e) {
         button.setEnabled(true); }});

     setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
     setResizable(false);

     button.addActionListener(new ActionListener() {
       @Override
       public void actionPerformed(ActionEvent e) {
         if (label.isVisible()) {
           label.setVisible(false);
           button.setText("Show");
           button.setEnabled(false);
           timer.start();
         } else {
           label.setVisible(true);
           button.setText("Hide");
           button.setEnabled(false);
           timer.start();
         } }});

     GroupLayout layout
       = new GroupLayout(getContentPane());
     getContentPane().setLayout(layout);
     layout.setAutoCreateGaps(true);
     layout.setAutoCreateContainerGaps(true);
     layout.setHonorsVisibility(label, Boolean.FALSE);

     layout.setHorizontalGroup(
       layout.createSequentialGroup()
         .addComponent(button)
         .addComponent(label));
     layout.setVerticalGroup(
       layout.createParallelGroup(
         GroupLayout.Alignment.BASELINE)
         .addComponent(button)
         .addComponent(label));

     pack();
     label.setPreferredSize(label.getPreferredSize());
     label.setVisible(false);
     setVisible(true);
   }

   public static void main(String args[]) {
     final Hide_Show_Label_with_Delay gui
       = new Hide_Show_Label_with_Delay();
     java.awt.EventQueue.invokeLater(new Runnable() {
       public void run() {
         gui.setVisible(true); }});
   }
}